Best Asaphida

Isotelus rex is a remarkably large species of trilobite belonging to the Asaphida order. Recovered from Ordovician-age rocks in Manitoba, Canada, it represents the largest complete trilobite fossil ever discovered reaching approximately 72 centimeters in length. This specimen provides crucial insigh...

Neoasaphus kowalewskii is a fossil trilobite discovered in Russia’s Ordovician deposits. This species is notable for its exceptionally long stalks supporting its eyes, a unique feature among trilobites. Its stalked-eyes provide valuable insight into the sensory capabilities of asaphid arthropods dur...

An Ordovician trilobite from the Baltic region, with species such as A. kowalewskii bearing stalked eyes up to 6 cm tall, highly prized by fossil collectors.

A large Ordovician trilobite from North America; Isotelus rex from Manitoba, Canada, ranks among the largest trilobites known, and the genus is Ohio's state fossil.

An Ordovician asaphid trilobite from Baltic Russia, closely related to Neoasaphus and also known for three-dimensionally preserved specimens with raised eye stalks.

A Middle Cambrian trilobite common in the Burgess Shale of British Columbia, Canada, and one of the most frequently encountered genera in that deposit.

Ogygiocaris is a large Ordovician asaphid trilobite genus found in Wales and Scandinavia, with a broad, flat body suited to benthic life.

Ogygiocarella is an Ordovician trilobite genus from Wales, historically significant as one of the earliest trilobites illustrated, by Edward Lhwyd in 1698.

An Ordovician trilobite of the family Ogygitidae, known from Europe and found in Llanvirn to Caradoc-age rocks across Gondwanan and peri-Gondwanan terranes.

A Silurian trilobite with a highly inflated, smooth exoskeleton and indistinct segmentation, found in reef-associated carbonates of North America and Europe.

Illaenus is an Ordovician-Silurian trilobite genus with a broad smooth cephalon and large eyes, well represented in the Baltic region.

Symphysurus is an Ordovician trilobite genus found in Scandinavia and China, notable as a member of the family Symphysurinidae with a wide geographic range.

A Silurian illaenid trilobite from Europe, Ectillaenus was described by Salter in 1866 and is recognized by its broad cephalon and large thorax.

Nileus is an Ordovician trilobite genus with a smooth, inflated cephalon and large eyes, common in the Ordovician limestones of Scandinavia.

Ordovician asaphid trilobite widely distributed across Gondwana and peri-Gondwanan terranes, serving as an important tool for intercontinental biostratigraphic correlation.

A Late Ordovician trilobite common in uppermost Ordovician strata of Europe, frequently cited in studies of the end-Ordovician mass extinction as it vanishes near the horizon.

An Ordovician trilobite from the Baltic region and South America, Nobiliasaphus is notable for its large, prominent compound eyes.

Ordovician trilobite from the Anglo-Welsh basin used as a biostratigraphic index fossil for correlating Lower Ordovician strata across Europe.

Ordovician trilobite genus known from European strata, a member of the diverse shallow-marine benthos of the period, with relatively limited described taxonomic material.

Ordovician trilobite genus known from European strata, a member of the diverse mid-Paleozoic shallow-marine benthos preserved in contemporaneous shelf and slope deposits.

An Ordovician trilobite from Scandinavia and North America, Apatokephalus was described by Brøgger in 1898 and is known for its spiny cephalon.

Early Ordovician trilobite used as a key index fossil for basal Ordovician strata, known from North America and other paleocontinents across the Tremadocian Stage.

Ordovician nileid trilobite known from North Africa and the Middle East, contributing to understanding of shallow-marine Gondwanan faunal assemblages.

A Cambrian trilobite genus distinguished by an elongated, pointed glabella, known from Middle Cambrian deposits and classified within the order Ptychopariida.